CavityTherm

CavityTherm built into a traditional 100-125mm cavity using traditional foundation, building skills and materials achieves U-values down to 0.15W/m2K.

A practical, affordable solution to low energy design, that results in traditional, desirable homes. Building Regulations, Zero Carbon and the Fabric Efficiency Standard.

CavityTherm U-values

Typical U-values which can be achieved using traditional
building techniques and thicknesses:

Thickness

U-values

100 mm

0.17 W/m2k

125 mm

0.14 W/m2k

150 mm

0.12 W/m2k

Based on the Following Specification: Block Lambda Value 0.15, Parge Coat,Dot and Dab Plasterboard

CavityTherm Accessories

Performance is in the detailThermal Bridging below 0.05 (Y)

All the members of our technical team are individually BBA accredited to help you reach your low energy goals. BBA qualified in U-value calculation, condensation risk - and also Thermal Bridging 3D analysis backed by BRE accreditation - when you call Xtratherm, you can be assured you're speaking to a qualified person.